Description:  GUVA-S12SD 3528 UV Sensor its connection port is compatible for Arduin sensor shield. It is a UV sensor containing the GUVA-S12SD, which can be widely used for intelligent indexing of UV devices, such as watches with UV exponential detection, smart phones with UV index detection, outdoor UV detection equipment, etc. It can also be used to monitor UV intensity, UV flame when UV disinfection. The sensor comes with four positioning holes that allow you to secure the sensor to other devices.     Specification:  Operating voltage: 3.3-5V (DC).  Interface: 3PIN interface.  Input signal: analog signal.  Spectral detection range: 240-370nm.  Active area: 0.076mm2.  Response: 0.14A / W.  Dark current: 1nA.  Light current: 101 to 125 nA UVA, 1 mW / cm2.  Weight: 2.5g.     Package included:  1 x GUVA-S12SD 3528 UV Sensor Module (the other items are not includes)